Predation of Atlantic salmon across ontogenetic stages and impacts on populations
Managers and stakeholders increasingly ask whether predation is a driving force behind the poor status of many species, and whether predator control is likely to be a successful management action to intervene. We review existing literature on Atlantic salmon Salmo salar predation and predator contro...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | https://hdl.handle.net/11250/3102730 https://doi.org/10.1139/cjfas-2023-0029 |
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ftimr:oai:imr.brage.unit.no:11250/3102730 2023-12-17T10:27:14+01:00 Predation of Atlantic salmon across ontogenetic stages and impacts on populations Falkegård, Morten Lennox, Robert Thorstad, Eva Bonsak Einum, Sigurd Fiske, Peder Garmo, Øyvind Aaberg Garseth, Åse Helen Skoglund, Helge Solberg, Monica Favnebøe Utne, Kjell Rong Vollset, Knut Vøllestad, Leif Asbjørn Wennevik, Vidar Forseth, Torbjørn 2023 application/pdf https://hdl.handle.net/11250/3102730 https://doi.org/10.1139/cjfas-2023-0029 eng eng Norges forskningsråd: 280308 Norges forskningsråd: 160022 Canadian Journal of Fisheries and Aquatic Sciences. 2023, 80 (10), 1696-1713. urn:issn:0706-652X https://hdl.handle.net/11250/3102730 https://doi.org/10.1139/cjfas-2023-0029 cristin:2165261 1696-1713 80 Canadian Journal of Fisheries and Aquatic Sciences 10 VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Peer reviewed Journal article 2023 ftimr https://doi.org/10.1139/cjfas-2023-0029 2023-11-22T23:47:45Z Managers and stakeholders increasingly ask whether predation is a driving force behind the poor status of many species, and whether predator control is likely to be a successful management action to intervene. We review existing literature on Atlantic salmon Salmo salar predation and predator control, as well as general ecological theory on the role of predation in the life cycle of this iconic fish. Many bird, mammal, and fish predators target salmon at different life stages. In healthy salmon populations, predation is likely compensated for by reduced intra-specific competition during the freshwater stage. There is little evidence that predation alone has been an underlying mechanism for driving salmon populations below conservation limits. However, depending on the predator’s response to salmon abundance, predation may keep decimated populations from recovering, even when the actual causes of decline have been removed. Under such a scenario, predation control may contribute to recovery, but there are no strong examples that clearly demonstrate the efficacy of managing predators to recover threatened salmon populations, challenging further applications. Predation of Atlantic salmon across ontogenetic stages and impacts on populations publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Institute for Marine Research: Brage IMR Canadian Journal of Fisheries and Aquatic Sciences |
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Open Polar |
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Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Falkegård, Morten Lennox, Robert Thorstad, Eva Bonsak Einum, Sigurd Fiske, Peder Garmo, Øyvind Aaberg Garseth, Åse Helen Skoglund, Helge Solberg, Monica Favnebøe Utne, Kjell Rong Vollset, Knut Vøllestad, Leif Asbjørn Wennevik, Vidar Forseth, Torbjørn Predation of Atlantic salmon across ontogenetic stages and impacts on populations |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Managers and stakeholders increasingly ask whether predation is a driving force behind the poor status of many species, and whether predator control is likely to be a successful management action to intervene. We review existing literature on Atlantic salmon Salmo salar predation and predator control, as well as general ecological theory on the role of predation in the life cycle of this iconic fish. Many bird, mammal, and fish predators target salmon at different life stages. In healthy salmon populations, predation is likely compensated for by reduced intra-specific competition during the freshwater stage. There is little evidence that predation alone has been an underlying mechanism for driving salmon populations below conservation limits. However, depending on the predator’s response to salmon abundance, predation may keep decimated populations from recovering, even when the actual causes of decline have been removed. Under such a scenario, predation control may contribute to recovery, but there are no strong examples that clearly demonstrate the efficacy of managing predators to recover threatened salmon populations, challenging further applications. Predation of Atlantic salmon across ontogenetic stages and impacts on populations publishedVersion |
format |
Article in Journal/Newspaper |
author |
Falkegård, Morten Lennox, Robert Thorstad, Eva Bonsak Einum, Sigurd Fiske, Peder Garmo, Øyvind Aaberg Garseth, Åse Helen Skoglund, Helge Solberg, Monica Favnebøe Utne, Kjell Rong Vollset, Knut Vøllestad, Leif Asbjørn Wennevik, Vidar Forseth, Torbjørn |
author_facet |
Falkegård, Morten Lennox, Robert Thorstad, Eva Bonsak Einum, Sigurd Fiske, Peder Garmo, Øyvind Aaberg Garseth, Åse Helen Skoglund, Helge Solberg, Monica Favnebøe Utne, Kjell Rong Vollset, Knut Vøllestad, Leif Asbjørn Wennevik, Vidar Forseth, Torbjørn |
author_sort |
Falkegård, Morten |
title |
Predation of Atlantic salmon across ontogenetic stages and impacts on populations |
title_short |
Predation of Atlantic salmon across ontogenetic stages and impacts on populations |
title_full |
Predation of Atlantic salmon across ontogenetic stages and impacts on populations |
title_fullStr |
Predation of Atlantic salmon across ontogenetic stages and impacts on populations |
title_full_unstemmed |
Predation of Atlantic salmon across ontogenetic stages and impacts on populations |
title_sort |
predation of atlantic salmon across ontogenetic stages and impacts on populations |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3102730 https://doi.org/10.1139/cjfas-2023-0029 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
1696-1713 80 Canadian Journal of Fisheries and Aquatic Sciences 10 |
op_relation |
Norges forskningsråd: 280308 Norges forskningsråd: 160022 Canadian Journal of Fisheries and Aquatic Sciences. 2023, 80 (10), 1696-1713. urn:issn:0706-652X https://hdl.handle.net/11250/3102730 https://doi.org/10.1139/cjfas-2023-0029 cristin:2165261 |
op_doi |
https://doi.org/10.1139/cjfas-2023-0029 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1785579025412915200 |